trope (n.) Look up trope at Dictionary.com
1530s, from Latin tropus "a figure of speech," from Greek tropos "turn, direction, turn or figure of speech," related to trope "a turning" and trepein "to turn," from PIE root trep- "to turn" (cf. Sanskrit trapate "is ashamed, confused," properly "turns away in shame;" Latin trepit "he turns"). Technically, in rhetoric, a figure of speech which consists in the use of a word or phrase in a sense other than that which is proper to it.